Improvement in mowing-machines



YEN LARGED V n Ew 1 X, f/-m a @Mm t To all whom t may concern: j y

Letters Patent were issued to John D. Wilber, of Poughkeepsie, NewYorlgbearing date of February 10, 1863, No. 37 ,656, for a new form and construction of mowingmachines, j byhiin called theEurekaJ7 and DEWIT'r C. MARKHAM, both of Collins` ville, in the county of Lewis and State of New York, have invented what wedeem valuable `Improvements in the Construction and Workto secure by Letters Patent, and of which the following is a complete and accurate descrip- "tion, reference being had to the accompany- "plan and a perspective view ofthe same, also asectionof theloop-support and aview of the joint attachment. j i Making no claim to any improvement in the working parts of the machine, whereby inotion and power are derivedand transmitted to` the scythe-bar, these parts have 'not been repre lsentedin the drawing. i `In the drawing, G C `is a wooden frame, it supported upon the axle-tree of lthe machine, and carrying `the gearing of the same. 1 P is a heavy metallic support, made fast to s one of the side pieces of the Haine, eX-A tending, forward" and `turning outward, the outerend of :which is enlarged and carries a i lar tted to the stud a., and secured upon the same by a nut or key, b. This collar is so adjusted that the bearing `.surface between i it and the support Fmay have the form of the w11 section of a sphere. The opposite end of the y collaris made fast to theend of the iinger-bar E, forming a rigid joint with the same, and

f carrying the stud upon which vibrates the e1- bow whichimparts motion to the scythe-bar. l: 1 H is a heavy bent metallic arm attached to the frameG, at the point c, by a stout bolt, so ad- -UNITED 'STATES `Be it known that we, HoMER C. MARKHAM ing of the above-mentioned,inventionof the,

said Wilber, which` improvements we desire q ing drawing, inwhich `we give `a horizontal z stout steel stud, a. Grisa heavy metal .col-` PATENT OFFICE.

i HOMEH c. MARKHAM AND nnwirfr c. MARKHAM, or coLLINsvILLE, N. Y.'

`|iviPFzovF,:VIENT IN MOWING-MACHINES.

i Specification forming part of Letters Patent No. 112,365, dated March 7, 1871.

i justed as toqallow of a motion of the opposite extremity of this arm in a vertical plane, thearm H passing through and being restricted and supported by thevloop I, made `fast upon the end of the arm of the frame G.

On the end of the finger-bar E there is a stout stud, which passes through the end of the arm H, in which it has a slight play.

Operation: When the machine is working upon smooth and even ground, the arm H, with the nnger-bar E, will be found to retain a position very nearly in the samey plane as the frame C C. But let one of the driving-wheels, say on the side C, pass any obstruction, thus tilting up that side, then, instead of raising up that end of the iinger-bar, the arm H, having a motion at ,0, prevents this end of the nnger-bar from still lying in close contact with,

the ground, making a slight rotation upon the stud a in the bearing F, and at the same time not interfering with the action of the scythebar.

Again, should thewheel upon the side G drop into any depression, the above action would be reversed simply, the iinger-bar still followingthe surface of the ground where the cutting is -to be done.

If, however, the wheel upon the side C i-s the one subject to these irregularities of motion, the construction of the joints at a and at d still admits of the'bar E retaining its desired position near the surface of the turf.

Having thus described the construction and operation of our invention, what we claim, and desire to secure by Letters Patent, is-

The combination of the flexible connection F G H with the cutter-bar E andframe C C', 

